Multiple choice

Which of the following appliances, when connected to a circuit, will melt the fuse and break the circuit?

  1. An electric oven of 0.6 kW operated at 220 V having a current rating of 5 A

  2. An electric oven of 2 kW operated at 220 V having a current rating of 6 A

  3. An electric oven of 0.8 kW operated at 200 V having a current rating of 5 A

  4. An electric oven of 1 kW operated at 200 V having a current rating of 6 A

  5. -
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

This is the correct answer. Current drawn by the electric oven, I = P/V = 2000/220 = 9 A. The current exceeds the safe limit of the circuit and hence, the fuse will melt.

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